When Two People's Rights Come into Conflict, and Both Rights

When two people's rights come into conflict, and both rights rest on the same moral values, how does McCall think we should decide the priority?

A) For which one is the value more centrally at stake?
B) Which person is the neediest?
C) Which person is the most powerful?
D) Which person is acting with autonomy and fairness?
E) Democracy: we should vote.